Contains the 10 tungsten carbide burrs in the following shapes and sizes (mm). Cylindrical (6mm), cylindrical (6mm), Christmas tree (10mm), ball nosed cylinder (13mm), ball nosed cylinder (10mm), ball nosed cylinder (6mm), ball nose cone (13mm), ball nosed cone (6mm), flame (10mm) and ball shape (10mm). These burrs are ideal for heavy stock removal and de-burring ferrous metals.